IT'S MY BIRTHDAY
Ann hopes you can come to her birthday!
Time
Twenty to six in the afternoon
Date
Monday, July 14th
Place
Flat 9B West Wing Tower
Phone
875-4615
Note
The more friends, the better.
在氧气中燃烧能生成气体的物质是 ____
A.硫 B.铁 C.镁 D.____ .
(2015•滨州)一元二次方程4x2+1=4x的根的情况是( )
在构成人体的结构层次中,人的眼睛属于( )